CVE-2024-1086: Linux Kernel Use-After-Free Vulnerability

CVE-2024-1086 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2024-05-30

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component allows for local privilege escalation. The nft_verdict_init() function incorrectly handles positive values as drop errors, leading to a double free in nf_hook_slow() when NF_DROP resembles NF_ACCEPT.

Technologies: Linux Kernel. Vendors: Linux.

Quick answers

Is CVE-2024-1086 exploited in the wild?
Yes. CVE-2024-1086 is known to be exploited in the wild, first recorded on 30 May 2024. Treat it as urgent.
How severe is CVE-2024-1086?
Critical severity, with a CVSS score of 7.8, published 30 May 2024.
Which products and versions are affected?
Linux Linux Kernel versions prior to commit f342de4e2f33e0e39165d8639387aa6c19dff660.
Is there a fix for CVE-2024-1086?
A patch was published on 2024-03-27: Commit f342de4e2f33e0e39165d8639387aa6c19dff660 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2024-1086 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2024-1086?
Check whether you run Linux Kernel. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Linux Linux Kernel versions prior to commit f342de4e2f33e0e39165d8639387aa6c19dff660

Timeline

  • 2024-05-30: disclosed
  • 2024-05-30: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2024-03-27: patched: Commit f342de4e2f33e0e39165d8639387aa6c19dff660
  • 2024-04-14: exploited: Public exploit availability noted in references

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